package collections;
import java.util.*;
public class Stack<T> {
    private Deque<T> storage = new ArrayDeque<>();
    public void push(T v){storage.push(v);}
    public T peek(){return storage.peek();}
    public T pop(){return storage.pop();}
    public boolean isEmpty(){
        return storage.isEmpty();
    }

    @Override
    public String toString(){
        return storage.toString();
    }

}
